A rail track made of steel having length 10 m is clamped on a railway line at its two ends (see figure). On a summer day due to rise in temperature by 20 C
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A rail track made of steel having length 10 m is clamped on a railway line at its two ends (see figure). On a summer day due to rise in temperature by 20 C, it is deformed as shown in figure. A rail track made of steel having length 10 m is clamped on a [...]